Dry spots between veins is typical of water stress. (reason needs to be determined.) Because th e spots area tan & dry, the problem occurred some time ago.

It also looks like chemical or sun burn.

Have you sprayed your plant with something ? Is it happening all over the plant or just the lower most leaves ?

I think also your 15-30-15 fertilizer might be too rich in P. Even though that P promotes flowering and fruits setting, plants don't use a whole lot of P. Of the NPK, P is used much less than N and K.

Sey

The leaves are really dark green in parts, more than it needs to be. Too much fertilizer I think.

I was thinking excess fertilizer (aka fertilizer burn) as well. How much and how often have you been using the Miracle Gro?

Rodney

Thanks guys! I started using the Miracle Gro AFTER I had noticed these changes on the leaves. I thought it would help but it did not. Regarding possible water stress, I water it regularly every day, same amount, the soil not too moist, not too dry. The fruits, however, grow fast and look VERY healthy. No changes on the stem. I think it's because of a VERY dry air, which is now only 25-35% humid.

*****************

Does it look similar to the Cl deficiency on this web-page?

http://www.charlottecountyweather.com/tomato.php

Thanks again

Alerochevy,

You could try using some Epsom Salts. This can help with leaves that turn yellow in between the veins. A tablespoon to a gallon should help, and you can use it as a foliar spray if you like.

Linda

This is more of a burn than a yellowing that is usual to magnesium deficiency. When the leaves are like that it won't turn back, so you can just remove or ignore the damaged leaves, as long as all the newer leaves are not all like that.

It's not from low humidity. My humidity dips to near zero (like 3%) and my plants suffer no damage.

Thanks.